Updated README

README.md

@@ -1,12 +1,9 @@
 # Cacao
-[![Swift](https://img.shields.io/badge/swift-3.0-orange.svg?style=flat)](https://developer.apple.com/swift/)
+[![Swift](https://img.shields.io/badge/swift-4.0-orange.svg?style=flat)](https://developer.apple.com/swift/)
 [![Platforms](https://img.shields.io/badge/platform-osx%20%7C%20linux-lightgrey.svg)](https://developer.apple.com/swift/)
 [![Release](https://img.shields.io/github/release/pureswift/cacao.svg)](https://github.com/PureSwift/Cacao/releases)
 [![License](https://img.shields.io/badge/license-MIT-71787A.svg)](https://tldrlegal.com/license/mit-license)
-[![Join the chat at https://gitter.im/PureSwift/SwiftFoundation](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/PureSwift/Cacao?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=body_badge)
-
 [![SPM compatible](https://img.shields.io/badge/SPM-compatible-4BC51D.svg?style=flat)](https://github.com/apple/swift-package-manager)
-[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 
 Pure Swift Cross-platform UIKit (Cocoa Touch) implementation (Supports Linux)